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प्रश्न
Define the term potential energy of a body.
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उत्तर
The energy possessed by a body by virtue of its specific position (or changed configuration) is called the potential energy.
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संबंधित प्रश्न
Two bodies A and B of masses 10 kg and 20 kg respectively are at the same height above the ground. Which of the two has greater potential energy?
Write the expression for the gravitational potential energy explaining the meaning of the symbols used.
Two bodies of same masses are placed at heights h and 2h. Compare their gravitational potential energy.
The gravitational potential energy stored in a box of weight 150 kgf is 1.5 × 104 J. Find the height of the box. Take 1 kgf = 10 N.
A body at a height possesses ______.
A ball of mass m is thrown vertically up with an initial velocity so as to reach a height h. The correct statement is:
A body of mass 2 kg is thrown vertically upwards with an initial velocity of 20 m/s. What will be its potential energy at the end of 2 s? (Assume g = 10 m/s2).
Explain by an example what is meant by potential energy. Write down the expression for gravitational potential energy of a body of mass m placed at a height h above the surface of the earth.
A man is instructed to carry a package from the base camp at B to summit A of a hill at a height of 1200 metres. The man weighs 800 N and the package weighs 200 N. If g = 10 m/s2,
- how much work does man do against gravity?
- what is the potential energy of the package at A if its is assumed to be zero at B?
What energy is possessed by stretched rubber?
